S系列单级双吸卧式中开离心泵(2013.03).pdf

400免费咨询电话 400 188 5009400 Free consultation Tel 400 188 5009 S 系列单级双吸卧式中开离心泵 S SERIES SINGLE STAGE DOUBLE SUCTION HORIZONTAL SPLIT CENTRIFUGAL PUMP 印刷日期 2012 11 20 Date of printing 2012 11 20 2012 年 第二版 第二次印刷 second printing and second edition in 2012 Both pump casing and cover form the working chamber of the impeller and there are threaded holes for mounting vacuum and pressure meters on the flanges at both inlet and outlet and for water draining on the lower side of them The impeller is static balance calibrated fixed with the m uff and the muff nuts in both sides and its axial position can be adjusted via the nuts and axial force gets balanced by means of the symmetrical arrangement of its blades there may be residual axial force which is borne by the bearing at the axle end The pump shaft is supported by two single column centripe tal ball bearings which are mounted inside of the bearing body on both ends of the pump and lubricated with grease The dual suction seal ring is used to reduce the leak at the impeller Both inlet and outlet of this pump are placed under the axial line horizontally and vertical to the axial line the pump casing is opened in the middle so it is unneccessary to remove the water inlet and outlet pipelines and motor or other prime movers The pump moves CW viewing from theclutchtoit The pump moving CCW can also be made but it should be specially noted at order The main parts of the pump are pump casing 1 pump cover 2 impeller 3 shaft 4 dual suction seal ring 5 muff 6 be aring 15 etc and all of them except the axle which is made of quality carbon steel are made of cast iron The material may be replaced with others upon different media 1 2 3 4 5 6 15 S Type pump figure dimension table S Type double suction centrifugal pump installation dimension drawing with foundation S Type pump with y type motor installation dimension table with foundation S Type double suction centrifugal pump installation dimension drawing without foundation S Type pump spare parts table S 80 C GB T3216GB T5657 o Model S pump is a single stage double suction horizontal split centrifugal pump and used to transport pure water and the liquid of both physical and chemical nature similar to those of water the maximum temperature of which must not be over 80 suitable for water supply and drainage in factories mines cities and electric stations waterlogged land drainage and irrigation of farming land and carious hydraulic projects This series pump comply with the standards of GB T3216 and GB T5657 General About the structure Assembly and disassembly Installation Startstop and run Failures causes and troubleshooting S Model pump structural drawing S Type pump performance data S Type pump performance curve S Type pump figure dimension drawing Model meaning 150S78A 78 150 Outer diameter of impeller via first cut Head 78m Dual suction centrifugal pump Pump s inlet diameter 150mm S SERIES SINGLE STAGE DOUBLE SUCTION HORIZONTAL SPLIT CENTRIFUGAL PUMP S SERIES SINGLE STAGE DOUBLE SUCTION HORIZONTAL SPLIT CENTRIFUGAL PUMP 1Check both pump and motor to see if any damages with th em 2The installation height f the pump plus the hydraulic loss of the suck in pipeline and its speed energy is just the NPSHa of the unit which should bigger than NPSHr The dimensions of the basis should be in line with those of in stallation of the pump unit 3 Installation sequences The pump is driven directly by means of connecting to it via an elastic clutch Set up a stand additionally in case of a rubber band driving The shaft seal is packing sealand to cool and lubricate the seal cavity and prevent air from getting into the pump there is a packing ring between the packing A small volume of high pressure water flows into the packing cavity via the tapered beard during the pump s working to act as a water seal 1 2 1 Assembly of the rotor s parts in turn mount the impeller muff muff nut packing sleeve packing ring packing gland mechanical seal mechanical seal bland water retaining r ing and bearing on thepump shaft puton thedual suction seal ring and then the clutch 2 Check the outer circles of the impeller s seal and the muff on the rotor separately the radial jumping of which should not be over the settings in the table below Nominal diameter 50501201202502505005008008001250 Jumping capacity 0 030 040 050 060 080 10 3 4 3Mount the rotor on the pump casing and adjust the impeller to haveits axialposition in themiddleofthedual suction seal ring in both sides and then fixed then fix the gland of the b earing s body with the fixing screws 4Put on the packing in case of a packing seal the paper pad on the middle opened face and the pump cover and tighten the threaded tail conical pin first and then cover s nut Mo unt the packing gland but do not press the packing too tig htly otherwise the muff may get heated to leave a bigger power consumption while not too loose or a big leak of liquid and reduced pump efficiency may result in If me chanical seal is used adjust compress capacity of mecha nical seal to ensure no leak with it After assembly move thepumpshaft withhand itshould be smooth and uniform without touch Disassembly can bem ade with the steps contrary to above ones 1 2 NPSHaNPSHa NPSHr 3 1 Before starting move the rotor of the pump which should be felt light smooth and uniform 2 Close the water outlet valve prime water intothepump le ad water by extracting with a vacuum pump in case of no foot valve Ensure the pump full of water and no air ne sted inside of it 1 Start and stop 1 2 3 4 0 1 0 3 5 4 5 6 7 20 1 Place the pump on the concretebasis withbuilt infoot bolts correct the levelness with the method adjusting the wedge cushion block and properlytightenthebolts topreventthem from displacement 2 Grout concrete between the basis and the pump foot 3 After the concrete gets solidified tighten the footbolts and check the pump s levelness again 4 Correct the concentricity between the axles of both pump and motor to have them in a straight line The allowed tol erance of the non concentricity of the outer circles of two clutches is 0 1mm and the one of the non uniform end face intervals along with the circumference is 0 3mm another correction of which after both water inlet and outlet pipe lines are connected and a trial movement the above requ irements should also be met with 5 After finding out the rotating direction ofthemotor is ide ntical to that of the pump mount the link pin of the clutch 4Both water inlet and outlet pipelines should be supported by a separate stand and not by the pump body 5Agood air tightness of the combined face between both p ump and pipeline should be kept especially the inlet pipel ine it must be guaranteed without air leak and without the possibility for air to be nested on the unit 6In general a foot valve can be mounted if the pump is mo unted above the water level of the water inlet so as to start the pump with priming itcanalso usethewayof vacuumpu mp water leading 7In general gate valve and check valve are required to be m ounted in the water outlet pipelineof thepump unnecessary for those of a head less than 20m with the check valve mounted after the gate valve The above ways of installation mean the pump without a common foundation For the pump with a common foundation use the wedge iron pad between both foundation and concrete to correct the levelness of the unit then grout concrete between them The installation principle and requirements are the same as those for the pump without a common foundation 1 2 S SERIES SINGLE STAGE DOUBLE SUCTION HORIZONTAL SPLIT CENTRIFUGAL PUMP 3 First close the plug of a vacuum or pressuremeter if so m ounted on the pump connected to the pump before starting the motor and then open it when the motor movein the nor mal speed next gradually open the water outlet gate va lve and make it smaller in case of a large flowrater or big ger or bigger on the contrary 4 Uniformly tighten the pressing nut on the packing gland to have liquid leak in drops and pay attention to thetempera ture rise outside of the packing cavity 5 When to stop the pump first close the plug of the vacuum or pressure meter and the gate valve on the water outlet p ipeline then cut off the power of the motor Open the squ are screw plug on the lower side of the pump casing to let the residual water out to prevent frozen cracking in case of a lower ambient temperature 6 In a long time stop remove the pump and dry the parts and coat rust proof grease on the processed surface 1 The maximum temperature of the pump s bearing must not be over 75 2 It is proper for the volume of the calcium based grease lub ricating the bearing to hold a space inside of the bearing body by 1 31 2 3 Properly press the packing gland in case of a little bit we ar and replace it in case of too much wear 4 Take a periodic check of the elastic clutch and take care of the temperature rise with the motor s bearing 5 During running stop it at once when noise or other abnor mal sound is heard to find the cause and settle it 6 Do not raise the pump speed at will but lowering it is all owed For instance with this type of pump therated rotat ing speed is n flowrate is Q head is H axlepower is N lo wered speed is n1 the flowrate head and axle power after speed lowering are Q H and N respectively Make c onversion by means of the following formula 2 Running 111 3 4 5 6 1 75 2 1 3 1 2 3 4 5 6 nQHN n1Q HN 1 11 Q Q1 n1 n H H1 2 n1 n N N1 3 n1 n 1 2 3 Too tightly pressed packing Friction between impeller and dual suction seal rin Too large flowrate g 1 2 3 Loosen it Check the cause to remove it Reduce the opening gate valve FailureCausesTroubleshooting Pump not suck water indicator of pressure and vacuum meters severely jumps Pump not suck water high vacuum is sho wn on vacuum meter No water out of pump pressure is shown on pressure meter Flowrate insufficient or too low head Too large consumption of power by pump 1 2 Injected water insufficient Leak occurs with pipeline or meter 1 2 3 Foot valve not opened or blocked up Too big resistance with suction pipline Too high water suction height 1 2 3 4 Too big resistance with water outlet pipeline Wrong rotating direction Impeller blocked up Rotating speed not enough 1 2 3 Impeller or both water inlet and outlet pipelines blocked up Too much wear with dual suction seal ring or im peller damaged Rotating speed is lower than the set value 1 2 Inject more water Tighten or block up the leak point 1 2 3 Correct or replace foot valve Rinse or replace pipeline Lower the height 1 2 3 4 Check or shorten pipeline Correct the direction of motor Clean it Check power voltage and raise the speed 1 2 3 Clean impeller or pipeline Replace it Adjust it to the rated value S SERIES SINGLE STAGE DOUBLE SUCTION HORIZONTAL SPLIT CENTRIFUGAL PUMP FailureCausesTroubleshooting Bearing over heated 1 2 Lack of oil inside of it Both pump and motor axles not on one central line 1 2 Check and clean bearing body lubricate it Correct the concentricity to have both on one central line Abnormalsound insideof pump no water goes upward into pump Abnormal vibration with pump 1 2 3 4 5 Too big resistance with suction pipeline Too high suction height Air is sucked into the water suck in place Too high temperature with the liquid being sucked Steam loss occurs due to a too large flowrate 1 2 3 4 Steam loss occurs with it Impeller is unbalanced Both pump and motor axles are not concentric Foot stud loose 1 2 3 4 Lower it 5 Make up suction pipeline and foot valve Lower it Check foot valve lower suction height block up the air leak place Adjust water outlet gate valve to have it run within the set range of performance 1 2 3 4 Adjust the valve to have it run within the set range of performance Take static correction for impeller Correct the concentricity Tighten it 109111213141516 17181920 81234567 Packing gland Key Pump casing 1 Pump cover 2 ImpellerShaft Dual suction seal ring Muff Packing sleevePackingPacking ring Muff nut Bearing bodyFixing screw Gland of bearing body Single column cen tripetal ball bearing Cluth End cap of bearing Water retaining ring Stud 3456710 111220 S SERIES SINGLE STAGE DOUBLE SUCTION HORIZONTAL SPLIT CENTRIFUGAL PUMP Pump typePump type QQ m h 3 m h 3 L s L s H m H m n r min n r min N kW N kW Shaft powerShaft powerMotorMotor NPSH r m NPSH r m 2950 2950 2950 2950 2950 2950 2950 2950 2950 2950 2950 2950 2950 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 1480 Weight kg Weight kg 120 160 192 126 160 198 112 140 180 130 160 220 112 140 180 108 133 160 200 280 324 180 268 310 165 245 298 216 280 351 186 270 332 216 280 342 198 270 310 360 485 612 300 420 535 360 485 612 324 420 576 360 485 576 342 420 482 360 485 576 320 420 505 590 790 936 576 756 918 546 720 900 576 790 972 529 735 893 504 685 835 612 790 900 537 700 790 612 790 935 485 700 798 612 790 900 515 700 785 850 1260 1660 787 1181 1550 700 1098 1350 972 1260 1440 900 1170 1332 800 1080 1200 972 1260 1476 876 1116 1360 972 1260 1440 33 3 44 4 53 3 35 0 44 4 55 0 31 1 39 50 0 36 1 44 4 61 1 31 1 38 9 50 0 30 0 36 9 44 4 55 6 77 8 90 0 50 0 74 4 86 1 45 8 68 1 82 8 60 0 77 8 97 5 51 7 75 0 92 2 60 0 77 8 95 0 55 0 75 0 86 1 100 0 134 7 170 0 83 3 116 7 148 6 100 0 134 7 170 0 90 0 116 7 160 0 100 0 134 7 160 0 95 0 116 7 133 9 100 0 134 7 160 0 88 9 116 7 140 3 163 9 219 4 260 0 160 0 210 0 255 0 151 7 200 0 250 0 160 0 219 4 270 0 146 9 204 2 248 1 140 0 190 3 231 9 170 0 219 4 250 0 149 2 194 4 219 4 170 0 219 4 259 7 134 7 194 4 221 7 170 0 219 4 250 0 143 1 194 4 218 1 236 1 350 0 461 1 218 6 328 1 430 6 194 4 305 0 375 0 270 0 350 0 400 0 250 0 325 0 370 0 222 2 300 0 333 3 270 0 350 0 410 0 243 3 310 0 377 8 270 0 350 0 400 0 103 100 92 84 78 70 65 60 53 5 52 50 40 42 39 34 38 36 32 102 95 85 95 87 78 81 72 60 70 4 63 52 56 5 48 38 5 48 42 35 43 36 31 70 65 54 53 48 40 43 39 32 5 31 5 29 22 27 24 19 22 20 17 17 14 11 12 10 8 2 95 90 86 83 78 72 72 67 57 65 58 50 55 50 42 47 2 43 37 36 5 32 27 3 29 26 22 5 22 19 15 5 18 15 13 14 5 12 10 11 5 10 9 135 125 110 121 112 100 104 96 89 80 75 69 70 65 60 60 55 52 50 44 37 41 36 30 29 26 22 48 8 59 7 67 7 41 2 45 9 53 1 29 1 31 8 37 5 25 2 27 6 31 5 18 3 19 8 22 8 16 9 18 4 19 4 81 7 94 0 100 0 71 6 84 6 90 2 56 4 64 9 69 5 55 9 59 3 69 0 41 5 45 8 49 0 35 3 37 7 41 0 31 3 33 1 34 6 91 5 108 6 127 6 61 8 71 3 79 8 55 4 62 0 69 4 38 6 42 5 48 6 33 1 36 8 36 3 25 9 27 6 27 9 20 8 21 7 22 1 13 2 14 1 14 5 224 4 251 4 277 4 200 2 216 9 239 9 169 9 185 0 194 0 135 9 148 5 165 4 110 0 122 0 129 2 91 2 100 2 109 2 74 2 79 1 83 6 53 7 59 0 62 0 45 8 48 4 52 6 32 1 35 7 37 2 30 2 31 1 33 1 22 4 24 4 25 6 446 3 542 7 685 6 381 2 461 6 594 3 300 3 372 7 448 0 264 6 302 6 329 9 219 9 252 5 275 4 174 2 204 7 220 6 163 3 177 6 188 2 123 8 131 8 140 6 93 6 101 3 102 7 75 55 45 37 30 22 132 110 75 75 55 45 37 132 90 75 55 45 37 30 18 5 315 280 220 185 160 132 90 75 55 45 37 30 710 630 500 355 315 280 220 160 132 69 73 71 70 74 71 68 72 70 73 79 76 70 75 73 66 71 72 68 77 75 65 75 73 64 5 74 70 74 81 72 69 77 71 80 85 79 5 74 80 75 5 75 79 70 5 70 77 73 76 83 78 72 78 71 80 86 82 79 83 80 80 85 78 79 81 78 68 77 79 65 74 75 63 71 72 75 84 80 72 82 79 71 80 77 82 87 80 79 84 78 80 84 5 75 74 80 76 80 83 74 72 78 75 70 79 72 5 68 78 71 66 77 73 80 85 82 78 82 79 75 79 77 81 85 79 79 83 79 82 88 84 4 5 4 5 4 5 4 5 4 5 4 5 5 5 5 5 5 5 5 3 8 3 8 3 8 3 8 3 8 3 8 3 8 3 8 4 8 4 8 4 8 4 8 4 8 4 8 4 8 4 8 4 8 4 8 4 8 4 8 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 168 158 158 147 147 147 240 240 240 187 187 219 219 518 518 400 400 305 305 305 305 840 840 840 599 599 599 709 709 434 434 413 413 1580 1580 1580 1200 1200 1200 1105 1105 672 150S 100 150S 78 150S 78A 150S 50 150S 50A 150S 50B 200S 95 200S 95A 200S 95B 200S 63 200S 63A 200S 42 200S 42A 250S 65 250S 65A 250S 39 250S 39A 250S 24 250S 24A 250S 14 250S 14A 300S 90 300S 90A 300S 90B 300S 58 300S 58A 300S 58B 300S 32 300S 32A 300S 19 300S 19A 300S 12 300S 12A 350S 125 350S 125A 350S 125B 350S 75 350S 75A 350S 75B 350S 44 350S 44A 350S 26 S SERIES SINGLE STAGE DOUBLE SUCTION HORIZONTAL SPLIT CENTRIFUGAL PUMP Pump typePump type QQ m h 3 m h 3 L s L s H m H m n r min n r min N kW N kW Shaft powerShaft powerMotorMotor NPSH r m NPSH r m 970 970 970 970 970 970 970 970 970 970 970 730 585 730 585 730 585 730 585 730 585 1480 1480 1480 1480 1480 1480 970 970 970 970 970 970 970 970 970 970 970 970 970 970 970 Weight kg Weight kg 840 1130 1260 960 1260 1440 800 1130 1340 1140 1620 1980 1020 1460 1850 960 1330 1720 800 1080 1320 720 960 1150 1620 2020 2340 1500 1872 2170 1400 1746 2020 1620 2020 2340 1500 1872 2170 1400 1746 2020 1620 2020 2340 1400 1746 2020 1620 2020 2340 1400 1746 2020 1620 2020 2340 2160 3170 3600 1980 3000 3240 1800 2830 3060 2160 3170 3600 1980 2880 3240 1750 2650 3150 2160 3170 3600 1980 2920 3240 2160 3170 3600 2000 2880 3240 1800 2628 3000 2520 3170 3600 2160 2880 3240 4320 5500 6480 3000 4400 5040 3960 4830 5500 2800 3870 4500 4320 5500 6480 3000 4400 5200 3500 4950 6000 2700 3960 4680 4320 5500 6480 3000 4400 5200 233 3 313 9 350 0 266 7 350 0 400 0 222 2 313 9 372 2 316 7 450 0 550 0 283 3 405 6 513 9 266 7 369 4 477 8 222 2 300 0 366 7 200 0 266 7 319 4 450 0 561 1 650 0 416 7 520 0 602 8 388 9 485 0 561 1 450 0 561 1 650 0 416 7 520 0 602 8 388 9 485 0 561 1 450 0 561 1 650 0 388 9 485 0 561 1 450 0 561 1 650 0 388 9 485 0 561 1 450 0 561 1 650 0 600 0 880 6 1000 0 550 0 833 3 900 0 500 0 786 1 850 0 600 0 880 6 1000 0 550 0 800 0 900 0 486 1 736 1 875 0 600 0 880 6 1000 0 550 0 811 1 900 0 600 0 880 6 1000 0 555 6 800 0 900 0 500 0 730 0 833 3 700 0 880 6 1000 0 600 0 800 0 900 0 1200 0 1527 8 1800 0 833 3 1222 2 1400 0 1100 0 1341 7 1527 8 777 8 1075 0 1250 0 1200 0 1527 8 1800 0 833 3 1222 2 1444 4 972 2 1375 0 1666 7 750 0 1100 0 1300 0 1200 0 1527 8 1800 0 833 3 1222 2 1444 4 24 21 19 19 5 16 13 15 12 9 5 102 90 78 89 78 66 78 68 56 45 40 32 39